add info about using 'autoscrollviewpager' lib with `support-v13` lib

[AlexTrotsenko]

I am using "native" fragments instead of android.support.v4.app.Fragment and target 4.1 only. That's why I only have

    compile 'com.android.support:appcompat-v7:21.0.+'
    compile 'com.android.support:support-v13:21.0.+' 
    compile 'com.viewpagerindicator:library:2.4.1@aar'

When I just add

   compile 'cn.trinea.android.view.autoscrollviewpager:android-auto-scroll-view-pager:1.1.2'

I have compilation errors like this:

.../.../Fragment.java:233: error: cannot find symbol
            final View switchContainer = MenuItemCompat.getActionView(filtersMenuItem);
                                                       ^
  symbol:   method getActionView(MenuItem)
  location: class MenuItemCompat

.../.../Fragment.java:291: error: cannot find symbol
            MenuItemCompat.setOnActionExpandListener(searchItem, new MenuItemCompat.OnActionExpandListener() {
                                                                                   ^
  symbol:   class OnActionExpandListener
  location: class MenuItemCompat

I assume, that it's because of conflicts of support-v13 and support-v4 libs.

Anyway, when I remove support-v4 lib from dependency of android-auto-scroll-view-pager lib, then all errors disappear. I guess, it's worth to add this information to 1st readme page. It could safe some hours for another people, who have same configuration.